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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 04-23-2010, 06:16 PM   #1
vinnybones
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Decent oil leak

So for the past 2 days iv been noticing oil drips so last night I put a piece of cardboard under my car and this morning it was covered in oil. It is towards te front of the engine, and towards the drivers side. I called a friend and he said it sounds like my "main seal" . Is this a DIY for somebody with minimul skills or should I go to a Indy shop? Also how much ad I looking. Est. Price of course

thanks!
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Old 04-23-2010, 07:26 PM   #2
///Orient3
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So for the past 2 days iv been noticing oil drips so last night I put a piece of cardboard under my car and this morning it was covered in oil. It is towards te front of the engine, and towards the drivers side. I called a friend and he said it sounds like my "main seal" . Is this a DIY for somebody with minimul skills or should I go to a Indy shop? Also how much ad I looking. Est. Price of course

thanks!
Actually, if it was your front main seal it would be more in the center. Because you describe it as more on the driver's side, my bet would be oil filter housing.
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Old 04-23-2010, 07:28 PM   #3
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actually, if it was your front main seal it would be more in the center. Because you describe it as more on the driver's side, my bet would be oil filter housing.
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Old 04-24-2010, 04:50 AM   #4
aggieE46
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Some people call the crank seal the "front main seal". But like Orient said, could be your oil filter housing. Check it out. Pretty common culprit.
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Old 04-24-2010, 08:24 AM   #5
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oil filter housing gasket a 5 dollar part the dealer with charge $500+ to repair. It's easy but takes some time because of all the stuff in the way. There are good DIY here.
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Old 04-24-2010, 09:53 AM   #6
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Are you sure it's not ATF (Power steering fluid) ?
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Old 04-24-2010, 09:56 AM   #7
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large O ring for the filter housing cover, the one that comes with the filter, check were the plastic top meets the aluminum housing
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Old 04-24-2010, 12:53 PM   #8
vinnybones
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Well I replaced it and it still is happenin. I'm dropping it off on Tuesday and in gonna tell him the places to check (where you guys said) to help him out finding it and maybe save me some labor time. Thanks guys. My power steering is blown, the resivior is empty duevto it being a almost 2 months without it.
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